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How to prevent stainless steel corrosion in stainless steel water tanks (1) Reduce the amount of carbon in the steel, so that the carbon content in the steel is lower than the saturated solubility in the austenite in equilibrium, that is, the chromium carbide (Cr23C6) is fundamentally solved. A problem that precipitates on the grain boundaries. Generally, the carbon content in the steel is reduced to less than 0.03% to meet the requirements for resistance to intergranular corrosion.
(2) Adding elements such as Ti and Nb which can form stable carbides (TiC or NbC), and avoiding the precipitation of Cr23C6 at the grain boundaries, can prevent intergranular corrosion of the upper austenitic stainless steel.
(3) By adjusting the ratio of austenite forming elements to ferrite forming elements in steel, it has austenite + iron body biphasic structure, in which ferrite accounts for 5% to 12%. This two-phase structure is less prone to intergranular corrosion.
(4) The appropriate heat treatment process can prevent intergranular corrosion and obtain the best corrosion resistance.
The information published is intended to disseminate more information. The relevant information has not been confirmed by this terminal. It does not constitute any investment advice for you. According to this operation, the risk is at your own risk. Please contact us for specific water tank prices.
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